The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 13, 2009
Filed:
May. 24, 2005
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Derek E. Williams, Austin, TX (US);
Leo J. Clark, Georgetown, TX (US);
James S. Fields, Jr., Austin, TX (US);
Guy L. Guthrie, Austin, TX (US);
William J. Starke, Round Rock, TX (US);
Derek E. Williams, Austin, TX (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Scrubbing logic in a local coherency domain issues a domain query request to at least one cache hierarchy in a remote coherency domain. The domain query request is a non-destructive probe of a coherency state associated with a target memory block by the at least one cache hierarchy. A coherency response to the domain query request is received. In response to the coherency response indicating that the target memory block is not cached in the remote coherency domain, a domain indication in the local coherency domain is updated to indicate that the target memory block is cached, if at all, only within the local coherency domain.